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1. LINE DATA
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Details of Protected Line
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Length of protected line 24.000KM
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Positive Sequence Resistance per KM0.081Ohms
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Positive Sequence Reactance per KM0.435Ohms
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Positive sequence impedance per KM0.442
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Zero Sequence Resistance per KM0.240Ohms
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Zero Sequence Reactance per KM1.460Ohms
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Zero Sequence Impedance per KM1.480
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Mutual Resistance per KM0.000Ohms
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Mutual Reactance per KM0.000Ohms
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Positive Sequence Resistance for Prot.line1.944Ohm
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Positive Sequence Reactance for Prot.line10.440Ohm
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Positive Sequence Impedence for Prot.line10.619Ohm
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Positive sequence Impedence angle79.420Degree
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Zero Sequence Resistance for Prot.line5.760Ohm
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Zero Sequence Reactance for Prot.line35.040Ohm
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Zero Sequence Impedence for Prot.line35.510Ohm
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Zero Sequence Impedence Angle80.633Degree
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Details of Adjacent Shortest line
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Length of the adjacent shortest line5.000KM
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Pos.Seq. Resistance of Adj. Line per KM0.027Ohm
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Pos.Seq. Reactance of Adj. Line per KM0.331Ohm
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Pos.Seq. Impedence of Adj. Line per KM0.332Ohm
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Positive Sequence Resistance for Prot.line0.327Ohm
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Positive Sequence Reactance for Prot.line1.404Ohm
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Positive Sequence Impedence for Prot.line1.660Ohm
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Positive sequence Impedence angle76.858Degree
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Details of Adjacent Longest line
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Length of the adjacent shortest line199.650KM
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Pos.Seq. Resistance of Adj. Line per KM0.027Ohm
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Pos.Seq. Reactance of Adj. Line per KM0.331Ohm
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Pos.Seq. Impedence of Adj. Line per KM0.332Ohm
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Positive Sequence Resistance for Prot.line5.316Ohm
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Positive Sequence Reactance for Prot.line66.070Ohm
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Positive Sequence Impedence for Prot.line66.284Ohm
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Positive sequence Impedence angle85.366Degree
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CT & PT Details
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CT Primary1000Amp
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CT Secondary1Amp
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PT Primary400Kilo Volt
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PT Secondary110Volt
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CT/PT Ratio0.275
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2. GROUND FACTOR
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Grounding Factor Kg = (Z0-Z1)/(3*Z1)
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Magnitude of grounding Factor Kg = (SQRT((X0-XL)*(X0-XL))+((R0-RL)*(R0-RL)))/(3*(SQRT(RL*RL)+(XL*XL)))0.781
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Angle of Grounding Factor Kg=(arc Tan((X0-XL/(R0-RL)))-(arc Tan(XL/RL))*180*7/221.730
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KZ1,KZ2,KZ3…. PS10.781
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Angle KG1.730
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3. ZONE SETTINGS
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Dist Z1(polygon) (80% of Protected Line Impedence*(CTR/PTR))2.336
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DIST Z2 (polygon) (120% Protected Line Impedence)x(CTR/PTR)3.504
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DIST Z3 (polygon) (100% of Protected Line Impedence+100% next longest line impedence)*(CTR/PTR)21.148
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DIST Z4 (polygon) (10% of Zone 1 Impedence)0.234
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4.RESISTIVE REACH SETTING:
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Primary full load current, CTR considered as Full load1000.000
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Resistance at this current=(0.8*(PT Primary*10^3)/1.732)/(2*Primary full load current)92.379
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Load Resistance in secondary=Resistance at this current*(CTR/PTR)- RL25.404
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DIST R3,PP(Polygon) Ps1(80% of RL) ohms20.323
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DIST R3,PG(Polygon) Ps1 (90% of RL ohms22.864
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5.POWER SWING SETTING:
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∆R & ∆X
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∆R -10 to 30% of Z3 R3,PP4.065
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∆X= 10 to 30% of Z3 R3, PP4.065
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